I created a Powerpoint, which I used as minilessons with my first grade class, that goes over what what nouns are. Included are common nouns, proper nouns, possessive nouns, singular and plural nouns, and pronouns.
I projected mine onto my Smartboard, so we were able to move items around, as there is a sorting activity. Since it's in Powerpoint, you're able to customize it to fit your needs. The thumbnails appear to look slightly different than the actual product.